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Finding the Fourth Proportional to 442,850.40, 664,275.60 and 162,331.20

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Solution

The fourth proportional to 442,850.40, 664,275.60 and 162,331.20 is: 243,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,850.40 : 664,275.60 = 162,331.20 : x
  2. Step 2: Convert to fraction form
    442,850.40/664,275.60 = 162,331.20/x
  3. Step 3: Cross multiply
    442,850.40x = 664,275.60 × 162,331.20
  4. Step 4: Simplify right side
    442,850.40x = 107,832,655,278.72
  5. Step 5: Solve for x
    x = 107,832,655,278.72/442,850.40
  6. Step 6: Final answer
    x = 243,496.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.